package com.gxkj.movie.config.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringContextUtil   implements ApplicationContextAware {
 
    /**
        * 上下文对象实例
        */
        private static ApplicationContext applicationContext;

        @Override
         public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
                     SpringContextUtil.applicationContext = applicationContext;
         }

             /**
       * 获取Spring上下文
       *
       * @return
       */
             public static ApplicationContext getApplicationContext() {
                 return applicationContext;
             }

             /**
       * 通过name获取Bean
       *
       * @param name
       * @return
       */
             public static Object getBean(String name) {
                 return getApplicationContext().getBean(name);
             }

             /**
       * 通过class获取Bean
       *
       * @param clazz
       * @param <T>
       * @return
       */
             public static <T> T getBean(Class<T> clazz) {
                 return getApplicationContext().getBean(clazz);
             }

       /**
       * 通过name,以及Clazz返回指定的Bean
       *
       * @param name
       * @param clazz
       * @param <T>
       * @return
       */
        public static <T> T getBean(String name, Class<T> clazz) {
                 return getApplicationContext().getBean(name, clazz);
         }

}